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18 Questions

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Structured vs. Unstructured Data

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Questions and Answers

What characterizes structured data?

Is typically text-heavy

Contains irregularities and ambiguities

Organized in an unstructured manner

Adheres to a pre-defined data model (correct)

Which of the following is an example of structured data?

Audio files

NoSQL databases

PDF documents

Excel files (correct)

What makes unstructured data difficult to analyze using traditional programs?

Predefined data model

Relationship between rows and columns

Presence of irregularities and ambiguities (correct)

Conformance to a tabular format

In which context is the ability to analyze unstructured data especially relevant?

Big Data (D) Signup and view all the answers

What type of data includes information like pictures and videos?

Unstructured data (C) Signup and view all the answers

Which of the following is NOT an example of unstructured data?

Excel files (B) Signup and view all the answers

What is the term used to refer to the columns in a dataset?

Variables (D) Signup and view all the answers

Which of the following is NOT a synonym for an attribute in a dataset?

Entity (C) Signup and view all the answers

In data analysis, what do rows correspond to in a dataset?

Observations (D) Signup and view all the answers

Which type of variable can only take on specific, distinct values with no intermediate values possible?

Discrete Variable (B) Signup and view all the answers

What is another term for a data object in a dataset?

Entity (C) Signup and view all the answers

In the context of data analysis, what does a field represent?

A variable (B) Signup and view all the answers

What is the importance of considering temporal autocorrelation when working with time series data?

To understand that values of two measurements close in time are often very similar (D) Signup and view all the answers

Which type of data is an example of spatial data according to the text?

Weather data (precipitation, temperature, pressure) collected for various geographical locations (B) Signup and view all the answers

In the context of spatial data, what does spatial autocorrelation refer to?

The similarity between objects that are physically close (A) Signup and view all the answers

What is a key characteristic of a data structure?

The collection of data values and relationships among them (D) Signup and view all the answers

Why is it important to organize and store data efficiently in a computer?

To ensure that data can be accessed and modified efficiently (C) Signup and view all the answers

Which aspect of temporal data is crucial for understanding temporal autocorrelation?

The values of measurements close in time (D) Signup and view all the answers